const Koa = require('koa')
const app = new Koa()
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const bodyparser = require('koa-bodyparser')
const logger = require('koa-logger')
const routerInit =  require("./routes/index") ;

app.use(async (ctx, next) => {
  ctx.set("Access-Control-Allow-Origin", "*");
  ctx.set(
    "Access-Control-Allow-Headers",
    "Content-Type, Content-Length,token,Authorization, Accept, X-Requested-With , yourHeaderFeild"
  );
  ctx.set("Access-Control-Allow-Methods", "PUT, POST, GET, DELETE, OPTIONS");
  if (ctx.method == "OPTIONS") {
    ctx.body = 200;
  } else {
    await next();
  }
});
// error handler
onerror(app)
routerInit(app);
// middlewares
app.use(bodyparser({
  enableTypes:['json', 'form', 'text']
}))
app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))

// app.use(views(__dirname + '/views', {
//   extension: 'pug'
// }))

// logger
app.use(async (ctx, next) => {
  const start = new Date()
  await next()
  const ms = new Date() - start
  console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
})

// routes


// error-handling
app.on('error', (err, ctx) => {
  console.error('server error', err, ctx)
});

module.exports = app
